%{
For FBHALE software
Copyright (C) 2018-present Facebook, Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%}
  
function aero = LoD(aero)
% This function models the aerodynamic performance according to a given
% constant L/D (simplest model).

% Compute forces assuming lift is known
aero.drag_N   = aero.lift_N / aero.LoD;
aero.forces_N = [drag_N; lift_N];

end
